September weather forecastMedellín, Spain
September
Weather in September
September, the first month of the autumn in Medellín, is also a hot month, with an average temperature fluctuating between 30.3°C (86.5°F) and 17°C (62.6°F).Temperature
As September arrives, Medellín's weather displays a minor decrease in high-temperatures, transitioning from August's sweltering 35°C (95°F) to a hot 30.3°C (86.5°F). A considerable shift from the daytime highs is observed during September nights, with an average low of 17°C (62.6°F).Heat index
September's heat index is computed to be a hot 30°C (86°F). Uninterrupted activity during exposure could lead to a sense of exhaustion, possibly causing heat cramps.It is noted that heat index values are ascertained for locations in the shade and with gentle breezes. Direct sunlight can potentially boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. Factors such as metabolic variations, being pregnant, and physical activity can impact an individual's weather perception. Be mindful that being in direct sunlight might mean feeling hotter, with the heat index rising by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Children regularly disregard the necessity to rest and replenish fluids. Thirst is a late symptom of dehydration - thus, maintaining hydration, particularly during long-lasting physical activities, is essential.
Humidity
In September, the average relative humidity is 43%.Rainfall
In Medellín, during September, the rain falls for 5 days and regularly aggregates up to 10mm (0.39") of precipitation. In Medellín, Spain, during the entire year, the rain falls for 93.1 days and collects up to 281mm (11.06") of precipitation.Snowfall
February through December are months without snowfall.Daylight
The average length of the day in September in Medellín, Spain, is 12h and 26min.On the first day of September in Medellín, sunrise is at 07:53 and sunset at 20:54. On the last day of the month, sunrise is at 08:19 and sunset at 20:07 CEST.
Sunshine
In September, the average sunshine is 9.5h.UV index
In September, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for average individuals.Note: In September, the average maximum UV index of 6 translates into the following recommendations:
Implement preventive steps and embrace sun safety standards. Protection from skin and eye distress is compulsory. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is at its strongest, and remember that parasols or canopies do not offer full protection. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Medellín, Spain
- Average high temperature in September: 30.3°C
The warmest month (with the highest average high temperature) is August (35°C).
The month with the lowest average high temperature is January (12.8°C).
- Average low temperature in September: 17°C
The month with the highest average low temperature is July (19.2°C).
The coldest month (with the lowest average low temperature) is January (3.9°C).
Average pressure in September
Medellín, Spain
- Average pressure in September: 1016.2mbar
The month with the highest atmospheric pressure is December (1023.2mbar).
The month with the lowest atmospheric pressure is July (1014.9mbar).
Average wind speed in September
Medellín, Spain
- Average wind speed in September: 8.3km/h
The windiest month (with the highest average wind speed) is March (11.6km/h).
The calmest month (with the lowest average wind speed) is September (8.3km/h).
Average humidity in September
Medellín, Spain
- Average humidity in September: 43%
The month with the highest relative humidity is January (80%).
The month with the lowest relative humidity is August (36%).
Average rainfall in September
Medellín, Spain
- Average rainfall in September: 10mm
The wettest month (with the highest rainfall) is November (43mm).
The driest month (with the least rainfall) is August (3mm).
Average rainfall days in September
Medellín, Spain
- Average rainfall days in September: 5 days
The month with the highest number of rainy days is April (13.3 days).
The months with the least rainy days are July and August (1.8 days).
Average snowfall in September
Medellín, Spain
- Average snowfall in September: 0mm
The month with the highest snowfall is January (2mm).
The months with the least snowfall are February, March, April, May, June, July, August, September, October, November and December (0mm).
Average snowfall days in September
Medellín, Spain
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.1 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October, November and December (0 days).
Average daylight in September /
Average sunshine in September
Medellín, Spain
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in September: 9h and 30min
The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 7h and 18min).
Average sunshine days in September
Medellín, Spain
- Average sunshine days in September: 23.5 days
The month with the most sunshine days is August (28.4 days).
The month with the least sunshine days is April (14.4 days).
Average UV index in September
Medellín, Spain
- Average UV index in September: 6
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in September
Medellín, Spain
- Average cloud cover in September: 15
The month with the most cloud cover is January (Cloud cover 39).
The month with the least cloud cover is July (Cloud cover 6).
Average visibility in September
Medellín, Spain
- Average visibility in September: 10km
The months with the highest visibility are May, June, July, August, September and October (10km).
The months with the lowest visibility are January, February, March, April, November and December (9km).





